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Scientists have identified a key biological system that activates brown fat's calorie-burning capabilities. A protein called SLIT3 splits into two parts, each guiding the growth of blood vessels and nerves inside brown fat tissue. These structures enable brown fat to absorb nutrients and rapidly convert them into heat rather than storing them as body fat.

Scientists have identified a key biological system that helps brown fat burn energy by building the networks it needs to function. A protein called SLIT3 splits into two parts, with each piece guiding the growth of blood vessels and nerves inside brown fat. These structures allow the tissue to pull in nutrients and rapidly convert them into heat instead of storing them as fat.